146109137 has 4 divisors (see below), whose sum is σ = 146152356. Its totient is φ = 146065920.

The previous prime is 146109121. The next prime is 146109143. The reversal of 146109137 is 731901641.

146109137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 731901641 = 19 ⋅38521139.

It can be written as a sum of positive squares in 2 ways, for example, as 4879681 + 141229456 = 2209^2 + 11884^2 .

It is a cyclic number.

It is not a de Polignac number, because 146109137 - 2⁴ = 146109121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146109037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16064 + ... + 23457.

It is an arithmetic number, because the mean of its divisors is an integer number (36538089).

Almost surely, 2^146109137 is an apocalyptic number.

It is an amenable number.

146109137 is a deficient number, since it is larger than the sum of its proper divisors (43219).

146109137 is an equidigital number, since it uses as much as digits as its factorization.

146109137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43218.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 146109137 is about 12087.5612511375. The cubic root of 146109137 is about 526.6949146753.

The spelling of 146109137 in words is "one hundred forty-six million, one hundred nine thousand, one hundred thirty-seven".